Improvement in permutation-padlocks



UNITED STATES PATENT OEEIGEc BENJAMIN F. KELLY, OF SHELOGTA,PENNSYLVANIA.

IMPROVEM ENT IN PERMUTATlON-PADLOCKS.

Specification forming part of Letters Patent No. 211,239, dated January7, 1879; application filed August 3, 1878. l

specification, and to the letters and figures of reference markedthereon.

Figure l ofthe drawings isa representation of a face of my lock. Fig. 2is a vertical central sectional view of the same 5 and Figs. 3, 4, and 5are detail views.

The nature of my invention consists in the construction and arrangementof mechanism for a combination-lock to be used in a padlock or otherlock, as will be hereinafter more fully set forth.

The annexed drawing, to which referenoeis made, fully illustrates myinvention as applied to a padlock. ,j

A represents the case of, the padlock, with the back B secured theretoin any suitable manner after the tumblers have been placed in position.From the top of the case extend ears, between which the shackle c ispivoted, the free end thereof entering a suitable opening in the case,as shown, and formed with a T-shaped head, c'.

From the center of the front of the lock- 'case extends a hollow hub, D,through which is passed a spindle, F, said spindle having upon its frontend a disk, G, tting in a recess in the front of the case and graduatedaround its circumference.

Around the hub D, inside of the casing A, is placed a circular tumbler7IL which is held against the inside of the frontvof the case by means ofa spring, I), fastened to the tumbler,

` and partially surrounding the hub D in a of the hub. From the side ofthe spindle F, at the inner end, projects a pin, h, which is to enterany one of a series of notches, t', made l' in the eye of the tumbler I,so that said tumbler will be turned by the turning of the disk Gr at thefront. Y

The front face of the tumbler I is formed with an annular recess, d',and passage e', leading from the same through the edge of the tumbler.'The tumblers H I are provided on their adjacent faces with pins m m',respectively, so arranged as to come in contact with each other by theturning of one tumbler. The tumbler I is held down in place by a washer,p, and screw n, as shown.

By turning the disk Gr twice around until a certain predetermined numberon the disk gets even with a mark on the face of the lock, the tumbler Iwill be turned'with it, and, by means of the pins m m, set the tumbler Hso that the passage e therein will coincide with the entrance for theshackle. By now turning the disk G in the opposite direction to acertain other predetermined number, the tumbler I will be set to haveits passage c coinciding with the entrance for the shackle. The shacklecan now be closed, and its head G will enter the annular recesses orgrooves d d', and a slight turn of thedisk Gr will lock the' same. Thelock is unlocked in the same manner.

To change the combination it is only necessary to loosen the tumbler Iand turn it so that c the pin 7L on the spindle will enter another ofthe notches i in said tumbler.

This invention is equally applicable to other kinds of locks as well asto padlocks.

What I claim as new, and desire to secure by Letters Patent, is-

The combination of the tumblers rH and I, constructed.` with recesses (ld', passages c c', and pins m m', and the graduated disk Gr, withspindle F,having lug 7L, and a series of notches,

t', in the eye ofthe tumbler I, substantially as and for the purposeherein set forth.

In testimony that I claim the above I have hereunto subscribed by namein the presence of two witnesses.

BENJAMIN FRANKLIN KELLY.

Witnesses:

J oEN B. Bonnnrs, 1 D. ANsLEY.

